Which part of the world has a high density of organism?

Related Mcqs:

1. The transfer of energy from organism to organism is a natural community establishes:

   A. Food chains
   B. Biological control
   C. Natural barriers
   D. All the above

2. A windbreak with 50% crown density is more effective than one of either 100% or of ______ density:

   A. 15%
   B. 20%
   C. 25%
   D. 30%

3. The best windbreaks approach is 100% crown density in the low-profile shurb, rows, and _____ density in the tall rows:

   A. 50%
   B. 60%
   C. 70%
   D. 80%

4. If carbon dioxide is withdrawn from the biosphere, which organism would first experience negative effect?

   A. Primary consumers
   B. Producers
   C. Secondary consumers
   D. Tertiary consumers

5. Which one of the following is not a matching pair of certain organism/s and the kind of association?

   A. Shark and sucker fish-commensalism
   B. Algae and fungi in lichens-parasitism
   C. Orchids growing on trees-epiphytism
   D. Cuscuta (doder) growing on other flowering plants-epiphytism

6. Type of relationship in which one organism is benefitted while there is no effect on other:

   A. Symbiosis
   B. Commensalism
   C. Mutualism
   D. Parasitism

7. When one organism is benefited without affecting the other, it is called:

   A. Parasitism
   B. Commensalism
   C. Saprophytism
   D. Symbiosis

8. Commensalism is a relationship between two organism in which:

   A. One is benefitted, other remains unaffected
   B. One is benefitted, other remains unaffected
   C. Both are benefitted
   D. Both are unaffected

9. Escherichia coli is used as an indicator organism to determine pollution of water with:

   A. Heavy metals
   B. Faecal matter
   C. Industrial effluents
   D. Pollen of aquatic plants

10. Functions of organism matter are:

    A. Provide N.P.S.
    B. Increase water holding capacity of soil
    C. Reduce impact of falling rain drops
    D. Source of energy for micro-organisms
    E. All of the above